/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: hidden;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 30%, #16213e 70%, #0f0f23 100%);
  min-height: 100vh;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* 现代科技感背景 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 25% 25%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  animation: subtleGlow 25s ease-in-out infinite;
  z-index: -1;
}

@keyframes subtleGlow {
  0%, 100% { opacity: 0.8; transform: scale(1) rotate(0deg); }
  33% { opacity: 1; transform: scale(1.02) rotate(1deg); }
  66% { opacity: 0.9; transform: scale(0.98) rotate(-1deg); }
}

/* 粒子效果 */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0; }
  10%, 90% { opacity: 1; }
  50% { transform: translateY(-100px) rotate(180deg); }
}

/* 通用容器样式 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 现代简约区域样式 */
section {
  padding: 120px 0;
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin: 40px 20px;
  border-radius: 24px;
  transition: all 0.3s ease;
}

section:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(59, 130, 246, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  border-radius: 2px;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}

.section-subtitle {
  font-size: 1.2rem;
  color: white;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 通用按钮样式 */
.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(45deg, #00d4ff, #5b73e8, #ff6b6b);
  color: white;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(0, 212, 255, 0.5);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.8);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .section-title {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.4rem;
  }
}

/* 全局高亮链接样式 */
.highlight-link {
  color: #ffffff !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 1.1em !important;
  padding: 0 8px !important;
  margin: 0 4px !important;
}

.highlight-link:hover {
  color: #93c5fd !important;
}

